研究了水溶性偶氮苯单体4-[4-(丙烯酰氧基)苯基偶氮]苯磺酸(APABS)的光物理性质。考察了溶剂对其光异构化反应的影响,并将APABS和丙烯酸羟乙酯(HEA)组成共聚体系,在交联剂N,N-亚甲基双丙烯酰胺(MBAA)的存在下,通过光聚合方法制备水凝胶。利用扫描电子显微镜考察了聚合温度对水凝胶内部结构影响。
The photo-physical properties of the water-soluble substituted azobenzene monomer,4-[4-(acry-loyl)phenylazo]benzene sulfonic acid(APABS),have been studied,and the effects of the solvent on its photo-isomerization performance were investigated.With N,N′-methylenebis acrylamide(MBAA) as cross-linking agents,the copolymer hydrogels of APABS and HEA were prepared through photo-polymerization method.The ef-fects of the polymerization temperature on the interior morphology of hydrogels have been examined by scanning electron microscopy(SEM).